Bc meson production in γγ collisions and charm content of the photon
A. P. Martynenko, V. A. Saleev
Abstract
Based on photon structure function formalism we have calculated Bc(Bc*) meson production cross section in γγ collisions via partonic subprocess cγ Bc(Bc*) b. It was shown that this approach gives the same results for Bc*(Bc) meson cross sections as the direct leading order QCD calculation of the subprocess γγ Bc(Bc*)b c at small energy. Howere, opposite to the direct QCD calculation we have obtained the increase of the Bc(Bc*) meson cross section at large energies. We have found also additional contribution to the Bc meson production via the nonperturbative fluctuations γ J/.
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